459 results about "Open cell" patented technology

The invention relates to the technical field of batteries, in particular to a silicon-carbon negative electrode material and a lithium ion secondary battery. The silicon-carbon negative electrode material comprises silicon-carbon particles, the silicon-carbon particles comprise a matrix, and the matrix comprises a porous carbon matrix and silicon particles located in internal holes of the porous carbon matrix; the porous carbon substrate is provided with open pores and closed pores, the open pores contain silicon particles, the closed pores contain an element K, and based on the total mass of the silicon carbon particles, the mass content of the element K is 50 ppm to 1000 ppm; the silicon-carbon particles comprise halogen, and based on the total mass of the silicon-carbon particles, the mass content of the halogen is 50 ppm to 2000 ppm; the silicon carbon particles and deionized water are mixed according to the mass ratio of 1: 10 to obtain an aqueous solution, the pH value of the aqueous solution at 25 DEG C is pH 1, and the pH 1 is 6-8. Comprising the silicon-carbon negative electrode material disclosed by the invention has the advantages that the expansion rate is improved, and the rate capability and the cycle performance are improved.

The present application relates to a kind of composite current collector and its preparation method, belong to secondary battery technical field.The composite current collector provided by the present application has the original structure of sharp cone for shape memory polymer support layer, and the opening of support layer is filled with foaming agent and foaming aid.A kind of composite current collector provided by the present application can reduce weight and improve the energy density of battery.Secondly, the composite current collector provided by the present application increases the heat-sensitive function, which can cut off the electrochemical reaction inside the secondary battery on one hand after the thermal runaway and external impact of battery, and can reduce the heat generation of secondary battery on the other hand when the secondary battery is at high temperature, which has a triple guarantee for the safety performance of battery.

The invention provides a porous carbon material, a negative electrode material, a manufacturing method of the negative electrode material, a negative electrode, a battery and equipment, the porous carbon material is provided with a plurality of open pores, the open pores are used for loading a silicon material, the plurality of open pores are uniformly distributed in the porous carbon material, and the open pores comprise micropores and mesopores; wherein the mesopores comprise at least one aperture range, and the range of each aperture range is less than or equal to 1nm. The open pores in the porous carbon material are uniformly distributed, the open pores comprise micropores and mesopores with small pore diameter range, and the mesopores can increase the pore volume of the porous carbon material, so that the negative electrode material formed by the open pore loaded silicon material in the porous carbon material has high specific capacity. In addition, a plurality of pores which are formed by the plurality of open pores and are used as reserved spaces for volume expansion of the silicon material are also uniformly distributed in the negative electrode material, and the pore diameter range of the plurality of pores is relatively small, so that the situation that the negative electrode material is broken due to concentrated stress can be avoided, and the structural stability of the negative electrode material is ensured.

Covered stents may be coated with or otherwise include a drug eluting composition. An illustrative stent may comprise an elongated tubular body having a strut framework defining a plurality of open cells. A polymeric coating may be disposed on a surface of the elongated tubular body and extending across the plurality of open cells and a first drug coating composition disposed on a surface of the polymeric coating.

This provides an improved dissolvable solid article with a specific aspect ratio. Such dissolvable solid article has a multilayer structure comprising two or more flexible, dissolvable, porous sheets, while each of which comprises a water-soluble polymer and a surfactant and is characterized by a Percent Open Cell Content of from 80% to 100% and an Overall Average Pore Size of from 100 μm to 2000 μm. The multilayer dissolvable solid article is characterized by a maximum dimension D and a minimum dimension z; and wherein the ratio of D / z ranges from 1 to 10.

The invention relates to the technical field of battery packs, and discloses a battery pack and a power utilization device, and the battery pack comprises a box body, a plurality of battery monomers and a supporting piece; the box body comprises a bottom plate, a frame and a cover plate which are fixedly connected, and the box body is provided with an accommodating cavity; the bottom plate is provided with a first flow channel extending in the first direction, and the cover plate is provided with a second flow channel. The plurality of single batteries are arranged in the accommodating cavity, and gaps are formed between the adjacent single batteries in the first direction; a plurality of first holes are formed in the bottom plate; in the first direction, the opening areas of the first holes are gradually increased and / or the opening number is gradually increased; the supporting piece is arranged in the gap, the orthographic projection of the supporting piece on the bottom plate in the third direction shields part of the gap, the supporting piece divides the gap into a third flow channel, and the third flow channel communicates with the first flow channel, the first hole and the second flow channel. Through the gradual change design of the opening area and / or the opening number of the first holes, the flow velocity of the cooling medium in different areas of the accommodating cavity is more uniform, and the liquid cooling flow uniformity and the overall heat dissipation effect are ensured.

The invention relates to the technical field of sodium ion battery negative electrode materials, in particular to a phenolic resin-based hard carbon sodium ion battery negative electrode material, a negative electrode and a preparation method and application thereof. The crosslinking degree and the main chain rigidity of the phenolic resin are regulated and controlled by regulating the number of benzene rings in side chains of aldehyde molecules, so that the internal space (free volume) of the phenolic resin is influenced, and a rich closed-pore structure is finally formed; then waste gas generated by pyrolysis of phenolic resin is used as a carbon source for chemical vapor deposition, and resin carbon is used as a substrate, so that the pore surface of hard carbon can be effectively sealed, electrolyte permeation is prevented, and open pores in the hard carbon material are converted into closed pore structures to be used as efficient sodium storage sites. Meanwhile, the method also has green sustainability and cycle economy, volatile waste gas generated by pyrolysis is reutilized as a carbon source to be deposited on the surface of resin carbon, the carbon yield is improved, the dynamic performance of the hard carbon material is also improved, and emission of the volatile waste gas is reduced.

The application provides a composite sensing device, which comprises a support, a control mainboard installed in a first circular groove, a first pressure collecting module installed on a long plate, a second pressure collecting module installed on a short plate, a pressure sensor installed outside the support, a pressure conducting sheet, an upper end of which is installed in a first groove, a middle end of which is attached to the pressure sensor, and a lower end of which is installed in a second groove, an equalizing spring installed in a second circular groove and pressed on the upper end of the pressure conducting sheet, a temperature sensor installed on an opening and attached to an upper end of any one of the moving contact assemblies, an insertion depth detection mechanism installed on the moving contact assemblies, and a power supply mechanism installed between the second circular groove and the base. The application also provides a switch cabinet online monitoring and comprehensive analysis system, which can monitor data in real time and avoid safety hazards.

The utility model relates to an electrocardio watch which comprises a bottom shell, a middle frame and a transparent watch cover, the bottom shell and the watch cover are arranged at the bottom end and the top end of the middle frame respectively, a control circuit board is arranged in the middle frame, a first electrode electrically connected with the control circuit board is arranged on the bottom face of the bottom shell, a second electrode is arranged on the upper surface of the watch cover, and the first electrode is electrically connected with the control circuit board. The second electrode comprises an upper electrode part located on the upper surface of the meter cover, a lower electrode part located in the middle frame and a connecting part, the two ends of the connecting part are connected with the upper electrode part and the lower electrode part respectively, and the lower electrode part is electrically connected with the control circuit board. According to the electrocardio watch, a structure used for installing the second electrode does not need to be independently arranged on the middle frame, the occupied space of the second electrode is reduced, the watch can be designed to be thinner, meanwhile, holes or protruding electrodes are prevented from being arranged on the middle frame, and the appearance integrity of the electrocardio watch is maintained.

The utility model provides a battery plugging assembly, and relates to the field of battery production equipment. The battery plugging assembly provided by the utility model comprises a cap plate, wherein at least one mounting part is arranged on one surface of the cap plate along the thickness direction; the at least one cap assembly comprises a cap used for blocking the opening of the open battery cell; one end of the connecting piece is connected with the cap, and the other end of the connecting piece is detachably connected to the corresponding mounting part. The battery plugging assembly provided by the utility model can be highly adaptive to temporary plugging after liquid injection of the open battery cell of the cylindrical battery, ensures efficient injection before electrolyte injection and effective sealing after liquid injection when the open liquid injection port design is adopted for the cylindrical battery, and is convenient to disassemble and assemble, so that the production efficiency of the cylindrical battery is remarkably improved.

The application discloses a wearable device and a control method thereof, and belongs to the technical field of communication. The disclosed wearable device comprises a device main body, an earphone and a movable element. The device main body comprises a device shell. The earphone comprises an earphone body and an earphone wire. At least a part of the earphone body is arranged outside the device shell. A first end of the earphone wire is connected with the earphone body. The movable element is movably arranged in the device shell. The movable element has a first stop position and a second stop position. The device shell is provided with an opening. A second end of the earphone wire penetrates through the opening and is connected with the movable element. The earphone has an earphone state and a loudspeaker state. When the movable element is in the first stop position, the earphone is in the earphone state. The length of the part of the earphone wire outside the device shell is a first length. When the movable element is in the second stop position, the earphone is in the loudspeaker state. The length of the part of the earphone wire outside the device shell is a second length. The first length is greater than the second length.

The utility model discloses a new energy storage battery temperature protection device, which comprises a protection combination part and an air cooling output assembly, the inner side of the outer end of the protection combination part is provided with a circulating emission mechanism in sleeved connection, and the air cooling output assembly in bolted connection is arranged above the periphery of the protection combination part. The air cooling output assembly comprises an air cooling frame, a perforated base, an air duct and a driving fan, the air cooling frame is arranged above the periphery of the protective combined part, and the perforated base connected through bolts is arranged above the air cooling frame; according to the temperature protection device for the new energy storage battery, the side of the storage battery body is provided with surface increasing attaching blocks which are distributed in an array mode, the inserted and sleeved shell is tightly inserted and attached, and an air cooling output assembly is matched with a driving water pump, a water distribution base, a smashing coil pipe and a fin set through a penetrating sleeve. And the temperature can be effectively discharged out of the equipment, so that the safety of the equipment in the operation process is improved.

A support plate (20), a display module, and a display device. The support plate (20) comprises a bendable region (21) and a non-bendable region (22). The bendable region (21) comprises a first bendable sub-region (211), a second bendable sub-region (212), and a connection region (213). The second bendable sub-region (212) is located between the first bendable sub-region (211) and the non-bendable region (22), and the connection region (213) is located between the first bendable sub-region (211) and the second bendable sub-region (212). The first bendable sub-region (211) is provided with a plurality of first air guide slots (V1) and a plurality of openings (H) passing through the support plate (20). The plurality of openings (H) comprise a plurality of closed openings (H2) and a plurality of open openings (H1). The closed openings (H2) are spaced apart from an edge of the support plate (20), and the open openings (H1) extend to the edge of the support plate (20). The plurality of first air guide slots (V1) enable the plurality of closed openings (H2) and the plurality of open openings (H1) to communicate with one another to form an air guide channel. The second bendable sub-region (212) is provided with an open recess (V0) extending to the edge of the support plate (20). The connection region (213) is provided with a second air guide slot (V2). The second air guide slot (V2) and the first air guide slots (V1) are located on a same side of the support plate (20), and the second air guide slot (V2) enables the open recess (V0) to communicate with the air guide channel.

The present disclosure relates to a semiconductor packaging device and a manufacturing method thereof. The semiconductor packaging device comprises a first chip, a first surface of the first chip is provided with a first conductive pad; a second chip is arranged on the first surface of the first chip, the first chip and the second chip are connected through an adhesive layer, a first redistribution line is arranged on a side of the second chip facing the first chip, the first redistribution line is electrically connected with a second conductive pad on the surface of the second chip; an opening is arranged on the second chip and the adhesive layer, the opening penetrates through the second chip and the adhesive layer, and a conductive material is filled in the opening, the conductive material electrically connects the first conductive pad and the first redistribution line. The semiconductor packaging device shortens the electrical connection path between the first chip and the second chip, and is beneficial to realizing better electrical connection effect.

The utility model discloses a cooking main body and microwave cooking utensil relates to life electric appliance technical field, the cooking main body includes the casing, door interlock mechanism and microswitch subassembly, the casing is equipped with the mounting cavity and with the clearance mouth of mounting cavity intercommunication, door interlock mechanism includes interlock support and interlock drive subassembly, and the microswitch subassembly is equipped with the mounting cavity and with the clearance mouth intercommunication. The interlocking support and the interlocking driving assembly are arranged in the mounting cavity, a groove structure is formed in the interlocking support in a sunken mode, a protruding mounting plate structure is arranged on the interlocking support, the groove structure is communicated with the receding opening, the interlocking driving assembly is arranged in the groove structure, at least part of the interlocking driving assembly is located in the receding opening, and the mounting plate structure is connected to the groove side wall of the groove structure. And the micro switch assembly is arranged on the mounting plate structure, is positioned outside the groove structure and is arranged on the mounting plate structure. According to the technical scheme provided by the utility model, the problems that the water inlet risk is high and electronic devices are easy to damage due to the fact that the opening corresponding to the door interlocking mechanism of the existing microwave cooking utensil with the top surface opened faces the top surface are solved.

The utility model provides an electronic device. The electronic equipment comprises a shell, a loudspeaker and a fragrance card, a first space is defined by the shell, the shell is provided with a first sound outlet hole, the first sound outlet hole is communicated with the first space and the exterior of the shell, the loudspeaker is installed in the first space, and the first sound outlet hole is used for transmitting sound emitted by the loudspeaker to the exterior of the shell. The fragrance card is detachably connected in the first space, an air passage is arranged in the first space, the air passage is communicated with the first sound outlet hole, the air passage is used for transmitting fragrance generated by the fragrance card to the first sound outlet hole, and the first sound outlet hole is used for transmitting the fragrance in the air passage to the outside of the shell. The fragrance card of the electronic equipment can emit fragrance, and the fragrance can be transmitted to the outside of the shell through the first sound outlet hole. The shell of the electronic equipment does not need to be additionally provided with through holes for emitting fragrance, so that the shell of the electronic equipment is provided with fewer holes, the appearance integrity of the electronic equipment is better, and dust and water vapor are not easy to introduce.

The invention relates to a metal mask supported by a glass substrate for manufacturing an organic light emitting diode display. The mask includes a glass substrate located only outside the display area, an open-cell metal layer for providing structural stability, and forming apertures for material deposition in the display area. The perforated metal layer can be formed by methods such as electroforming, sputtering, chemical vapor deposition, evaporation or atomic layer deposition, and the used metal comprises a material with a low thermal expansion coefficient, such as invar steel, super invar steel, kovar alloy, 42 alloy, nickel, tungsten, molybdenum, tantalum or rhenium. The mask supports two structural forms: a fine metal mask and an open metal mask which are respectively used for evaporation of red, green and blue sub-pixels and a common layer. The method can be used for batch processing of a plurality of micro organic light-emitting diode display substrates, and can also be used for full-coverage processing of a single active matrix organic light-emitting diode display substrate.

The present application relates to a kind of porous metal materials.The cavity wall of the hole surrounded by is connected open hole, and the cavity wall is axial hollow structure, and the cavity wall has hole in radial direction, and the porosity of the porous metal material is uniformly distributed or gradient distribution, and the gradient distribution can be gradient change along one direction, or it can be three-dimensional gradient change, and the cavity wall radial hole is single-stage hole.The porous metal material of the present application has good mechanical properties, high three-dimensional pore connectivity, and good transfer performance.

The invention belongs to the technical field of intelligent equipment, and discloses a support for a rain gauge, which comprises a base and a mounting plate, the base is connected with the rain gauge, the mounting plate is connected above the base, and the mounting plate is used for mounting a terminal. The base comprises a connecting part, a supporting part and a supporting plate, an open hole is formed in the connecting part, the mounting plate is an L-shaped plate and comprises a mounting plate I and a mounting plate II which are vertically arranged, and an open hole is formed in the mounting plate II and fixedly connected with the open hole in the supporting part through a bolt and a nut. The invention further discloses a rain gauge which comprises an outer cylinder, a tipping bucket component and a terminal. A tipping bucket component and a terminal are arranged in the outer cylinder, the tipping bucket component measures rainfall flowing into the tipping bucket component and transmits data to the terminal, and the terminal is connected with the tipping bucket component through a support. The pluviometer is stable in installation, accurate in monitoring, ingenious and reasonable in structural arrangement, capable of fixedly installing the telemetering terminal, free of additional trepanning, reusable in parts, convenient to install and fix, convenient to transform, low in cost and suitable for application and popularization.

The utility model discloses mobile leveling type semiconductor detection support relates to semiconductor detection technical field. The detection support includes sliding base frame, probe adjustment sliding block, mobile installation on the sliding base frame, probe adjustment sliding block is used for directly or indirectly with detection probe fixed connection, support positioning leveling assembly is used for with the detection window positioning, fixed connection and leveling of sliding base frame, support positioning leveling assembly includes detection window positioning assembly and micro distance adjusting assembly, through detection window positioning assembly fixed connection of the through sliding base frame with the opening on the detection window, through micro distance adjusting assembly fine adjustment sliding base frame and the distance of detection window. Through support positioning leveling assembly realizes integral leveling and inhibits the influence of thermal expansion, realizes that detection probe can install positioning at any position, and test position is positioned at will, and compatible with the change of various size substrate and tray.

The display device comprises a back shell (DD), a backlight module (BLU) and a display module (PNL) which are sequentially stacked. The display device has an NFC wiring area (CC) for arranging an NFC coil (LL); the NFC coil (LL) is arranged in the display module (PNL); an iron oxide layer (FF) overlapping the NFC wiring area (CC) is arranged between the back shell (DD) and the back shell (E1) of the backlight module (BLU), and / or the back shell (E1) of the backlight module (BLU) has an opening hole overlapping the NFC wiring area (CC), and / or at least part of the area overlapping the NFC wiring area (CC) of the back shell (DD) and the back shell (E1) of the backlight module (BLU) adopts a non-metal material. The display device can improve the strength of the signal magnetic field.

The utility model relates to the field of machinery, in particular to a notebook computer shell aluminum-plastic combination technology. Tooling equipment for generating an injection molding fixing mechanism of an aluminum alloy notebook computer shell comprises a tooling table, and the notebook computer shell machined by the tooling table comprises an aluminum alloy shell; at least five cavities are formed in the aluminum alloy shell and serve as injection molding cavities of the fixing mechanism. The injection molding cavity is embedded in the aluminum alloy shell, an opening is formed in the upper portion, and an opening is formed in the lower portion. The injection molding cavities are arranged on the aluminum alloy shell to form an array structure; the tool table is provided with an injection molding opening, the injection molding opening is higher than the open hole of the injection molding cavity, and an injection molding material is allowed to enter the injection molding cavity through the open hole of the injection molding cavity; and the table top of the tool table and the at least five injection molding cavities enclose to form a cavity array of a closed injection molding material. And the injection molding material in the injection molding cavity and the injection molding piece on the surface of the aluminum alloy shell are bound and connected together, so that the effect of enhancing the connection strength between the aluminum alloy and the colloid is achieved.

Open-cell spray polyurethane foams having low densities and high yields, methods for the manufacture thereof, and methods of use thereof are disclosed. A isocyanate mixture and a resin mixture comprising a polyol, an emulsifier, a flame retardant, a catalyst, a surfactant, and a blowing agent may be simultaneously applied to a substrate with a spraying system. If the isocyanate and resin mixtures are sprayed while the spraying system is in an environment having an ambient temperature ranging from 80 to 90 degrees Fahrenheit and a relative humidity of 30% or less, the resulting foam may have a density of 5 pounds per cubic foot or less and a yield of at least 15,000 board feet per 50 gallons. Such foams may also have various desirable physical characteristics similar to conventional closed-cell spray polyurethane foams, making these foams ideal for insulating buildings.

The application discloses a kind of based on threshold voltage regulation Multi-heterojunction GaN HEMT preparation method, comprising: growing GaN buffer layer and multiple periodic arrangement, including GaN channel layer and InAlN barrier layer channel barrier structure on SiC substrate;Surface preparation source drain and realize device active area isolation on side face;Surface deposition passivation layer and etching on the aperture of gate position;Etching channel barrier structure downward at the aperture of gate position, until etching period number makes threshold voltage regulation to pre-set requirement obtains recess;Gate preparation is completed in recess, and obtains threshold voltage regulation after Multi-heterojunction GaN HEMT.The application is designed by the thickness of GaN channel layer and InAlN barrier layer or the doping concentration design of additional InAlN barrier layer, and is designed in combination with etching formula of each material in channel barrier structure, so that etching depth and threshold voltage present linear variation, can realize threshold voltage accurate regulation.

The invention provides a substrate for a lamp bead and lighting equipment, and belongs to the technical field of lighting, and the substrate comprises a supporting substrate with an opening; the heat conduction pieces are embedded in the open holes, lamp beads are installed on the heat conduction pieces, and the heat conduction efficiency of the heat conduction pieces is larger than that of the supporting substrate; according to the substrate for the lamp beads, the supporting substrate below the lamp beads is provided with the holes, and the heat conduction pieces are placed in the holes and pressed tightly, so that the overall heat dissipation efficiency is effectively improved. Specifically, the heat dissipation requirement of the high-power LED lamp bead can be met, and compared with a mode of increasing the thickness of an aluminum substrate, more cost is saved. The heat conduction piece, such as copper, is placed in the open hole, and the heat conduction efficiency of the copper is far higher than that of aluminum, so that the heat dissipation effect can be ensured, the use amount of the copper is reduced, and the cost increase is controlled while the heat dissipation effect is kept. The LED lamp has important economic value for large-scale production and popularization of the LED lamp.

This application relates to the field of battery production equipment technology, and in particular to a battery spot welding machine, including a battery feeding assembly, a battery pack transport assembly, a battery pack gripping assembly, an electrode sheet transport assembly, and a spot welding assembly. The battery feeding assembly includes a battery box, a battery turntable, and a turntable motor. The bottom of the battery box is open, and the inner wall of the battery box is inclined towards the opening with a material dropping slope. The battery turntable is located at the opening of the battery box and is adapted to the size of the opening. The battery turntable has several battery slots. The turntable motor is located below the battery box. Batteries to be processed are piled in the battery box and roll down along the material dropping slope under the influence of gravity, thereby embedding into the battery slots on the battery turntable. The turntable motor drives the battery turntable to rotate, carrying the batteries and sending them to the next process. This application has the feature of increasing the battery yield.

The utility model provides a multi-layer composite metal disc filtering system. Comprising an output pipe, a protective cover is fixed to the output pipe, a hydraulic rod is fixed to the protective cover through a support, a metal disc is clamped between the output pipe and the hydraulic rod, a fixing ring is clamped to the metal disc, a circular ring is clamped to the fixing ring, a filter screen is arranged on the circular ring, and a cavity is formed in the metal disc. A first filter membrane is arranged in the cavity, and a through hole is formed in the cavity. According to the multi-layer composite metal disc filtering system provided by the utility model, large particles are intercepted by materials in the output pipe through the filter screen, enter the fixed ring, enter the cavity through the open hole, pass through the cavity and are filtered for the first time through the first filter membrane, then are filtered for the second time through the second filter membrane, and flow out through the through hole; the problems that an existing metal disc is unstable in structure, when the water pressure is too large, the liquid leakage phenomenon is likely to occur, and the filtering efficiency and quality are affected are solved.

The invention belongs to the technical field of luminescence imaging detection, and particularly relates to an electrochemical luminescence imaging detection platform based on a closed bipolar electrode array and application. Comprising a sensor and a detection unit, a bipolar electrode array unit comprises an insulating substrate, an anode region and a cathode region, the anode region and the cathode region are isolated from each other and are of the same structure, and each anode region or each cathode region is provided with a plurality of independent holes which are arrayed in parallel; gold nanoparticles are loaded in a plurality of independent open pores of the parallel array in the anode region, and a Ru (bpy) 32 < + >-TPA system is constructed; au / g-C3N4 composite materials are loaded in a plurality of independent open pores of the parallel array in the cathode region, and an Au / g-C3N4-K2S2O8 system is constructed. According to the invention, based on the bipolar electrode array unit, the terpyridyl ruthenium and the gold / graphite phase carbon nitride are used as different illuminants to realize capture and quantitative analysis for synchronous detection of acetaminophen and rutin, and the detection accuracy and high-throughput analysis are ensured.

The utility model relates to sensor technical field, and disclose industrial sensor's multidirectional outlet structure, including backplate, the top of backplate is provided with front plate, the top of front plate is provided with calibration mechanism, the surface of calibration mechanism is opened the T type round groove of passing through backplate bottom, the top of backplate is provided with sensor main part, the front end of sensor main part is provided with locking mechanism. The utility model discloses the inside locking connection of plug -in block is inserted to the slot, then the cable is worn from T type round groove, thereby realized the effect of back outlet, compared with the outlet structure of traditional industrial sensor, the multidirectional outlet structure of this industrial sensor is through back outlet, completes hiding after wall surface trepanning when installing, the cable is directly arranged in the wall body after installation, cannot see the cable from the outside, thereby improved the aesthetic effect.